Modular Sighting System Mount

ABSTRACT

A sight adjustment facility is provided for a firearm. The sight adjustment facility comprises a base. The sight adjustment facility comprises an elongated platform element. The elongated platform element is movably connected to the base. The sight adjustment facility comprises a first adjustment facility. The first adjustment facility is adapted to move the elongated platform element with respect to the base in windage. The sight adjustment facility comprises a second adjustment facility. The second adjustment facility is adapted to move the elongated platform element with respect to the base in elevation. The elongated platform element has a sight mounting facility.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the benefit of U.S. Provisional Application No. 62/400,112, filed Sep. 27, 2016, which is hereby incorporated by reference in its entirety.

FIELD OF THE INVENTION

The present invention relates to sighting systems for firearms, and more particularly to mechanisms for adjusting sighting systems.

BACKGROUND OF THE INVENTION

Many current sighting systems may be challenging to configure to a firearm. To be effective, at least some aspect of a sighting system requires strict alignment to the barrel of the firearm or to the ballistic trajectory of projectiles emitted from the barrel. In many current sighting systems, a unique zero for the firearm is stored in the sighting system. The unique zero typically includes adjustments for windage and/or elevation. These adjustments are typically made through adjustment mechanisms for windage and/or elevation on the sighting system. The unique zero is often a result of variation in firearm design, a range of manufacturing tolerances for component dimensions, and the assembly of firearm components. Therefore, many current sighting systems are calibrated for the unique zero of only one firearm at a time. Replacing the sighting system would require making adjustments to the windage and/or elevation on the replacement sighting system to match the unique zero of the firearm. Moving the sighting system to a second firearm would require making adjustments to the windage and/or elevation on the sighting system for the unique zero of the second firearm. The time and effort required to make adjustments for windage and/or elevation in many current sighting systems is significant enough that users of firearms often utilize a sighting system for each firearm. What is needed is a sight adjustment facility.

SUMMARY OF THE INVENTION

At least some embodiments of the present invention provide a sight adjustment facility for a firearm. The sight adjustment facility comprises a base. The sight adjustment facility comprises an elongated platform element. The elongated platform element is movably connected to the base. The sight adjustment facility comprises a first adjustment facility. The first adjustment facility is adapted to move the elongated platform element with respect to the base in windage. The sight adjustment facility comprises a second adjustment facility. The second adjustment facility is adapted to move the elongated platform element with respect to the base in elevation. The elongated platform element has a sight mounting facility.

According to some of the various embodiments, a base may include a rail clamp facility. The rail clamp facility may be adapted to connect to a rail of a firearm. The base may be integrated with the firearm. The base may be integrated with an upper receiver. The base may be configured to mount to a barrel, forearm, handguard, gas system, action cover, and/or 45/90/180 degree offset rails of a firearm or firearm component. For the purposes of this disclosure, the term firearm may include barreled weapons configured to launch one or more projectiles, devices configured to launch rocket-propelled projectiles, weapons configured to launch large caliber projectiles such as one or more grenade cartridges, combinations thereof, and/or the like.

According to some of the various embodiments, a first adjustment facility may be proximate a first end of a base and a second adjustment facility may be proximate a second end of the base. The base may include a pivot pin defining a first pivot axis. An elongated platform element may be configured to be pivotally connected to the pivot pin to pivot about the first pivot axis. The second adjustment facility may be adapted to control the position of the elongated platform element about the first pivot axis. The first adjustment facility may include the pivot pin defining the first pivot axis. At least a portion of the pivot pin may be externally threaded. The elongated platform element may define a multi-axis swivel comprising a threaded bore receiving the pivot pin. The first adjustment facility may be adapted to generate positional change of the elongated platform element proximate the multi-axis swivel in response to rotation of the pivot pin. A sight adjustment facility may include a windage adjustment knob connected to the pivot pin. The elongated platform element may be formed of a first material and include a boss formed of a second material and defining the threaded bore. The pivot pin may be threadably engaged between the base and the elongated platform element to provide positional shifting between the base and the elongated platform element in response to rotation of the pivot pin.

According to some of the various embodiments, a second adjustment facility may include an elevation shaft and an elevation adjustment knob interconnecting a base and an elongated platform element. The elevation shaft may define a second pivot axis. The elongated platform element may be configured to be pivotally connected to the elevation shaft to pivot about the second pivot axis. At least a portion of the elevation shaft may be externally threaded. A first pivot axis may be oriented perpendicular to the second pivot axis. A first adjustment facility may be adapted to control the position of the elongated platform element about the second pivot axis. The elevation adjustment knob may be threadably engaged to the base to provide positional shifting between the base and the elongated platform element in response to rotation of the elevation adjustment knob.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates an example sight adjustment facility connected to an example rail of an example firearm in accordance with an aspect of various embodiments.

FIG. 2 illustrates an example sight adjustment facility comprising an example base integrated with an example upper receiver in accordance with an aspect of various embodiments.

FIGS. 3A and 3B illustrate example windage adjustments of an example sight adjustment facility in accordance with an aspect of various embodiments.

FIG. 4A illustrates an example sight adjustment facility in accordance with an aspect of various embodiments.

FIG. 4B illustrates example elevation adjustments of an example sight adjustment facility in accordance with an aspect of various embodiments.

FIGS. 5A and 5B illustrate an example windage adjustment for a right point of aim on an example sight adjustment facility in accordance with an aspect of various embodiments.

FIGS. 6A and 6B illustrate an example windage adjustment for a left point of aim on an example sight adjustment facility in accordance with an aspect of various embodiments.

FIG. 7 illustrates an exploded view of an example sight adjustment facility in accordance with an aspect of various embodiments.

DESCRIPTION OF CURRENT EMBODIMENTS

Embodiments of the invention now will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention Like numbers refer to like elements throughout.

Certain embodiments of the invention provide a sight adjustment facility for a firearm.

FIG. 1 illustrates an example sight adjustment facility connected to an example rail of an example firearm 1 in accordance with an aspect of various embodiments. The sight adjustment facility may comprise an elongated platform element (or “mounting base”) 8. The elongated platform element 8 may comprise a sight mounting facility. The sight mounting facility may be configured to accept a sighting system (e.g. 15). The sight mounting facility may be configured to accept a rear and/or front backup sight. The sight mounting facility may comprise an integrated rear and/or front backup sight. The sight adjustment facility may comprise a first adjustment facility. The first adjustment facility may be adapted to adjust the elongated platform element 8 in windage. The elongated platform element 8 may be adjusted for windage through employment of windage adjustment knob (or “windage knob”) 6. The sight adjustment facility may comprise a second adjustment facility. The second adjustment facility may be adapted to adjust the elongated platform element 8 in elevation. The elongated platform element 8 may be adjusted for elevation through employment of elevation adjustment knob 12A. Windage and/or elevation adjustments may be related to angles relative to the barrel of the firearm 1. Elevation adjustments may be designated with angles through employment of a ballistic dial. The ballistic dial may comprise at least one adjustable ballistic dial and a ballistic dial cap 12C. The angles are commonly expressed in Minutes Of Angle (MOA) or Milliradians (Mils.), and/or fractions of MOA or Mils. The ballistic dial may be employed to compensate for variations in ammunition, employment of a suppressor, employment of at least one different barrel, combinations thereof, and/or the like.

FIG. 2 illustrates an example sight adjustment facility comprising an example base integrated with an example upper receiver 16 in accordance with an aspect of various embodiments. The sight adjustment facility may comprise an elongated platform element 8. The elongated platform element may be configured to be fastened to a base integrated with the upper receiver 16 through employment of a swivel bolt 9. The sight adjustment facility may comprise a first adjustment facility. The first adjustment facility may be adapted to adjust the elongated platform element 8 with respect to the base in windage. The elongated platform element 8 may be adjusted for windage through employment of at least one windage adjustment knob 6. The sight adjustment facility may comprise a second adjustment facility. The second adjustment facility may be adapted to adjust the elongated platform element 8 with respect to the base in elevation. The elongated platform element 8 may be adjusted for elevation through employment of an elevation adjustment knob 12A. Elevation adjustments may be designated with angles through employment of a ballistic dial. The ballistic dial may comprise at least one adjustable ballistic dial and a ballistic dial cap 12C.

FIGS. 3A and 3B illustrate example windage adjustments of an example sight adjustment facility in accordance with an aspect of various embodiments. FIG. 3A illustrates a front view of the example sight adjustment facility through a range of windage settings. FIG. 3B illustrates a top view of the example sight adjustment facility through a range of windage settings. The sight adjustment facility may comprise an elongated platform element 8. The sight adjustment facility may comprise a first adjustment facility. The first adjustment facility may be adapted to adjust the elongated platform element 8 with respect to a base in windage. The elongated platform element 8 may be adjusted for windage through employment of at least one windage adjustment knob 6. The sight adjustment facility may comprise a second adjustment facility. The second adjustment facility may define a second pivot axis. Adjustments to windage may cause the elongated platform element 8 to pivot about the second pivot axis. The second adjustment facility may comprise an elevation adjustment knob 12A and a ballistic dial cap 12C.

FIG. 4A illustrates an example sight adjustment facility in accordance with an aspect of various embodiments. FIG. 4A illustrates a side view of the example sight adjustment facility at a level or low elevation setting. The sight adjustment facility may comprise an elongated platform element 8. The elongated platform element 8 may be configured to be movably connected to a base 2. The base 2 may include a rail clamp facility. The rail clamp facility may comprise at least one clamp bolt (e.g. 4A and 4B) configured to facilitate clamping on to a rail such as a picatinny rail or a weaver rail. The sight adjustment facility may comprise a first adjustment facility. The first adjustment facility may be adapted to move the elongated platform element 8 with respect to the base 2 in windage The first adjustment facility may define a first pivot axis. The sight adjustment facility may comprise a pivot pin 5 (or “windage bolt ”).The pivot pin 5 may define the first pivot axis. The sight adjustment facility may comprise a multi-axis swivel (or “windage swivel ”) 7. The multi-axis swivel 7 may comprise a threaded bore. The threaded bore may be configured to receive the pivot pin 5. The sight adjustment facility may comprise a swivel bolt 9. The elongated platform element 8 may be configured to be fastened to the base 2 through employment of the swivel bolt 9. The sight adjustment facility may comprise a second adjustment facility. The second adjustment facility may be adapted to adjust the elongated platform element 8 with respect to the base 2 in elevation. The sight adjustment facility may comprise an elevation shaft (or “elevation thread insert”) 10. The elevation shaft 10 may be secured to the base 2 through employment of an elevation retaining pin 11C. The elongated platform element 8 may be adjusted for elevation through employment of an elevation adjustment knob 12A. Elevation adjustments may be related to angles relative to the barrel of a firearm. Elevation adjustments may cause the elongated platform element 8 to pivot about the first pivot axis. The elevation adjustment knob 12A may be configured to threadably receive the elevation shaft 10. The elevation shaft 10 and the elevation adjustment knob 12A may be configured to interconnect the base 2 and the elongated platform element 8. The elevation shaft 10 may define a second pivot axis. The sight adjustment facility may comprise an elevation spring 12G. The elevation spring 12G may be employed to separate the base 2 from the elongated platform element 8. The sight adjustment facility may comprise at least one play reduction spring (e.g. 34A and 34B). The at least one play reduction spring (e.g. 34A and 34B) may be employed to separate the base 2 from the elongated platform element 8. The at least one play reduction spring (e.g. 34A and 34B) may be employed to reduce deformation of the elongated platform element 8. Elevation adjustments may be designated with angles through employment of a ballistic dial. The ballistic dial may comprise at least one adjustable ballistic dial 12B and a ballistic dial cap 12C. The ballistic dial cap 12C may be configured to be fastened to the elevation adjustment knob 12A through employment of cap bolts 12D. The sight adjustment facility may comprise an elevation bushing 12E. The elevation bushing 12E may be employed to secure the elevation adjustment knob 12A to the elongated platform element 8.

The sight adjustment facility may comprise a spring 32A and a detent 32B. The spring 32A and the detent 32B may be guided by a hole in the elongated platform element 8.

FIG. 4B illustrates example elevation adjustments of an example sight adjustment facility in accordance with an aspect of various embodiments. FIG. 4B illustrates a side view of the example sight adjustment facility through a range of elevation settings. The sight adjustment facility may comprise an elongated platform element 8. The elongated platform element may be configured to be movably connected to a base 2. The base 2 may include a rail clamp facility. The rail clamp facility may comprise gripping pieces (e.g. 3A and 3B) configured to facilitate clamping on to a rail such as a picatinny rail or a weaver rail. The sight adjustment facility may comprise a first adjustment facility. The first adjustment facility may define a first pivot axis. The first adjustment facility may comprise at least one windage adjustment knob 6. The sight adjustment facility may comprise a second adjustment facility. The second adjustment facility may be adapted to adjust the elongated platform element 8 with respect to the base 2 in elevation. The elongated platform element 8 may be adjusted for elevation through employment of an elevation adjustment knob 12A. Elevation adjustments may be related to angles relative to the barrel of a firearm. Elevation adjustments may cause the elongated platform element 8 to pivot about the first pivot axis. Elevation adjustments may be designated with angles through employment of a ballistic dial. The ballistic dial may comprise at least one adjustable ballistic dial and a ballistic dial cap 12C.

FIGS. 5A and 5B illustrate an example windage adjustment for a right point of aim on an example sight adjustment facility in accordance with an aspect of various embodiments. FIG. 5A illustrates a top view of the example sight adjustment facility at a right point of aim. FIG. 5B illustrates a rear view of the example sight adjustment facility at a right point of aim. The sight adjustment facility may comprise an elongated platform element 8. The sight adjustment facility may comprise a first adjustment facility. The first adjustment facility may be adapted to adjust the elongated platform element 8 with respect to a base in windage. The elongated platform element 8 may be adjusted for windage through employment of at least one windage adjustment knob 6. The sight adjustment facility may comprise a second adjustment facility. The second adjustment facility may define a second pivot axis. Adjustments to windage may cause the elongated platform element 8 to pivot about the second pivot axis. For example, as shown in FIG. 5A, adjustments to windage for a right point of aim (a left point of impact) cause the elongated platform element 8 to pivot about the second pivot axis in a clockwise direction. The second adjustment facility may comprise an elevation adjustment knob 12A and a ballistic dial cap 12C.

FIGS. 6A and 6B illustrate an example windage adjustment for a left point of aim on an example sight adjustment facility in accordance with an aspect of various embodiments. FIG. 6A illustrates a top view of the example sight adjustment facility at a left point of aim. FIG. 6B illustrates a rear view of the example sight adjustment facility at a left point of aim. The sight adjustment facility may comprise an elongated platform element 8. The sight adjustment facility may comprise a first adjustment facility. The first adjustment facility may be adapted to adjust the elongated platform element 8 with respect to a base in windage. The elongated platform element 8 may be adjusted for windage through employment of at least one windage adjustment knob 6. The sight adjustment facility may comprise a second adjustment facility. The second adjustment facility may define a second pivot axis. Adjustments to windage may cause the elongated platform element 8 to pivot about the second pivot axis. For example, as shown in FIG. 6A, adjustments to windage for a left point of aim (a right point of impact) cause the elongated platform element 8 to pivot about the second pivot axis in a counterclockwise direction. The second adjustment facility may comprise an elevation adjustment knob 12A and a ballistic dial cap 12C.

According to some of the various embodiments, a sight adjustment facility may comprise a base 2. The sight adjustment facility may comprise an elongated platform element 8 configured to be movably connected to the base 2. The sight adjustment facility may comprise a first adjustment facility. The first adjustment facility may be adapted to move the elongated platform element 8 with respect to the base 2 in windage. The sight adjustment facility may comprise a second adjustment facility. The second adjustment facility may be adapted to move the elongated platform element 8 with respect to the base 2 in elevation. The first adjustment facility may be proximate a first end of the base 2. The second adjustment facility may be proximate a second end of the base 2. Alternatively, the first adjustment facility and the second adjustment facility may be co-located.

FIG. 7 illustrates an exploded view of an example sight adjustment facility in accordance with an aspect of various embodiments. The sight adjustment facility may comprise a base 2. The base 2 may include a rail clamp facility. The rail clamp facility may be adapted to connect to a rail of a firearm. The rail clamp facility may comprise at least one clamp bolt (e.g. 4A and 4B) and at least one gripping piece (e.g. 3A and 3B). The sight adjustment facility may comprise a pivot pin 5. The pivot pin 5 may define a first pivot axis. The sight adjustment facility may comprise at least one windage adjustment knob 6. The at least one windage adjustment knob 6 may be configured to connect to the pivot pin 5. The pivot pin 5 may be configured for connection by one of the at least one windage adjustment knob 6 on each end the pivot pin 5 for ambidextrous use. The at least one windage adjustment knob 6 may comprise etched and/or embossed markings. The markings may relate to at least a fraction of a MOA or a Mil. The markings may comprise at least one zero designation. The markings may be configured to line up to a reference line on the base 2. The sight adjustment facility may comprise a washer 33. Washer 33 may be disposed to each of the at least one windage adjustment knob 6 and the pivot pin 5. A windage adjustment retaining pin and/or windage adjustment retaining screws 11A and 11B may be configured to secure each of the at least one windage adjustment knob 6 to the pivot pin 5. Effectively securing each of the at least one windage adjustment knob 6 to the pivot pin 5 may require adhesive (e.g. threadlocker) on the windage adjustment retaining screws 11A and 11B. The sight adjustment facility may comprise a multi-axis swivel 7. The multi-axis swivel 7 may comprise a threaded bore. The threaded bore may be configured to receive the pivot pin 5. The pivot pin 5 may comprise a threaded middle section configured to threadably connect to the threaded bore. The threaded middle section may comprise a high thread count. The high thread count may be equal to or greater than 80 Threads Per Inch (TPI). The sight adjustment facility may comprise an elongated platform element 8. The elongated platform element 8 may be configured to be pivotally connected to the pivot pin 5 to pivot about the first pivot axis. The sight adjustment facility may comprise a swivel bolt 9. The elongated platform element 8 may be configured to be fastened to the base 2 through employment of the swivel bolt 9. Effective fastening of the elongated platform element 8 to the base 2 may require adhesive (e.g. threadlocker) on the swivel bolt 9 and/or a threaded port on the multi-axis swivel 7. When the elongated platform element 8 is fastened to the base 2 through employment of the pivot pin 5 and the multi-axis swivel 7, the multi-axis swivel 7 may be configured to act as a gimbal. In this configuration, the multi-axis swivel 7 is pivotally connected to the base 2 along a first (e.g. horizontal) axis, and the elongated platform element 8 is pivotally connected to the multi-axis swivel 7 along a second (e.g. vertical) axis. The sight adjustment facility may comprise an elevation shaft 10. The elevation shaft 10 may be secured to the base 2 through employment of an elevation retaining pin 11C. The elevation shaft 10 or the base 2 may be configured to restrict rotation of the retaining pin 11C. The sight adjustment facility may comprise an elevation adjustment knob 12A. The elevation adjustment knob 12A may be configured to threadably receive the elevation shaft 10. The elevation shaft 10 and the elevation adjustment knob 12A may be configured to interconnect the base 2 and the elongated platform element 8. The elevation shaft 10 may define a second pivot axis. The sight adjustment facility may comprise an elevation spring 12G. The elevation spring 12G may be employed to separate the base 2 from the elongated platform element 8. The sight adjustment facility may comprise a ballistic dial. Elevation adjustments through employment of the elevation adjustment knob 12A may be related to angles through employment of the ballistic dial. The ballistic dial may comprise at least one adjustable ballistic dial (e.g. 12B) and a ballistic dial cap 12C. The at least one adjustable ballistic dial (e.g. 12B) may comprise etched and/or embossed markings. The markings may relate to at least a fraction of a MOA or a Mil. The markings may comprise at least one zero designation. The markings may be configured to line up to a reference line on the elongated platform element 8. The ballistic dial cap 12C may be configured to be fastened to the elevation adjustment knob 12A through employment of cap bolts 12D. Effective fastening of the ballistic dial cap 12C to the elevation adjustment knob 12A may require adhesive (e.g. threadlocker) on the cap bolts 12D. The sight adjustment facility may comprise an elevation bushing 12E. The elevation bushing 12E may be employed to secure the elevation adjustment knob 12A to the elongated platform element 8. The elevation bushing 12E may be configured to be fastened to the elevation adjustment knob 12A through employment of bushing bolts 12F. Effective fastening of the elevation bushing 12E to the elevation adjustment knob 12A may require adhesive (e.g. threadlocker) on the of bushing bolts 12F. The elongated platform element 8 may comprise a relief configured to partially house the elevation bushing 12E. The elevation bushing 12E may be configured to rotate freely around the elevation shaft 10. The sight adjustment facility may comprise a spring 32A and a detent 32B. The spring 32A and the detent 32B may be guided by a hole in the elongated platform element 8. The elevation adjustment knob 12A may comprise a plurality of relief sections configured to receive the detent 32B. The plurality of relief sections may be equally spaced. The plurality of relief sections may be configured near an outer circumference of the elevation adjustment knob 12A. The spring 32A and the detent 32B may be employed to prevent rotation of the elevation adjustment knob 12A until a specific resistance is overcome. The specific resistance may be based, at least partially, on the spring rate of the spring 32A, and/or friction between the detent 32B and the elevation adjustment knob 12A. Similarly, the sight adjustment facility may comprise a spring 31A and a detent 31B. The spring 31A and the detent 31B may be guided by a hole in the base 2. Each of the at least one windage adjustment knob 6 may comprise a plurality of relief sections configured to receive the detent 31B. The plurality of relief sections may be equally spaced. The plurality of relief sections may be configured near an outer circumference of each of the at least one windage adjustment knob 6. The spring 31A and the detent 31B may be employed to prevent rotation of each of the at least one windage adjustment knob 6 until a specific resistance is overcome. The sight adjustment facility may comprise at least one play reduction spring (e.g. 34A and 34B).

According to some of the various embodiments, a base 2 may be integrated with a firearm. The base 2 may be integrated with an upper receiver (e.g. 16). The base 2 may include a pivot pin 5. The base 2 may be configured to constrain the pivot pin 5 along its cylindrical axis (rotational axis) to prevent lateral motion of the pivot pin 5. The pivot pin 5 may be constrained by a hole, slot, and/or groove in the base 2.

According to some of the various embodiments, an elongated platform element 8 may define a multi-axis swivel 7. The multi-axis swivel 7 may comprise a threaded bore. The threaded bore may be configured to receive a pivot pin 5. The pivot pin 5 may comprise a threaded rod. A first adjustment facility may be adapted to generate positional change of the elongated platform element 8 proximate the multi-axis swivel 7 in response to rotation of the pivot pin 5. The multi-axis swivel 7 may be configured to shift left or right with respect to a base 2. At least a mostly square or rectangular shaped hole in the base 2 may be configured to restrict travel of the multi-axis swivel 7.

According to some of the various embodiments, an elongated platform element 8 may comprise a first material. The elongated platform element 8 may include a boss formed of the first and/or a second material. The boss may define a threaded bore. The threaded bore may be configured to receive a pivot pin 5.

Certain embodiments of the invention provide a first adjustment facility for a firearm. The first adjustment facility may include a pivot pin 5. The pivot pin 5 may be adapted to define a first pivot axis. An elongated platform element 8 may be configured to pivotally connect to the pivot pin 5 to pivot about the first pivot axis. At least a portion of the pivot pin 5 may be externally threaded. At least one windage adjustment knob 6 may be configured to connect to the pivot pin 5. The pivot pin 5 may be configured to be threadably engaged between a base 2 and the elongated platform element 8 to provide positional shifting between the base 2 and the elongated platform element 8 in response to rotation of the pivot pin 5.

According to some of the various embodiments, a first adjustment facility may comprise a pivot pin 5, a multi-axis swivel 7, and at least one windage adjustment knob 6. The first adjustment facility may further comprise windage adjustment retaining screws 11A and 11B. The first adjustment facility may further comprise a swivel bolt 9. The first adjustment facility may further comprise a spring 31A and a detent 31B. The first adjustment facility may further comprise a washer 33.

According to some of the various embodiments, a second adjustment facility may include an elevation shaft 10 and an elevation adjustment knob 12A. The elevation shaft 10 and the elevation adjustment knob 12A may be configured to interconnect a base 2 and an elongated platform element 8. The elevation shaft 10 may define a second pivot axis. The elongated platform element 8 may be configured to be pivotally connected to the elevation shaft 10 to pivot about the second pivot axis. At least a portion of the elevation shaft 10 may be externally threaded. The elevation adjustment knob 12A may be configured to be threadably engaged to the base 2 to provide positional shifting between the base 2 and the elongated platform element 8 in response to rotation of the elevation adjustment knob 12A.

According to some of the various embodiments, a second adjustment facility may comprise an elevation shaft 10 and an elevation adjustment knob 12A. The second adjustment facility may further comprise an elevation spring 12G. The second adjustment facility may further comprise a ballistic dial. The ballistic dial may comprise at least one adjustable ballistic dial (e.g. 12B) and a ballistic dial cap 12C. The second adjustment facility may further comprise a spring 32A and a detent 32B. The second adjustment facility may further comprise at least one cap bolt (e.g. 12D). The second adjustment facility may further comprise an elevation bushing 12E. The second adjustment facility may further comprise at least two bushing bolts (e.g. 12F). The second adjustment facility may further comprise an elevation retaining pin 11C.

According to some of the various embodiments, a first adjustment facility may include a pivot pin 5 defining a first pivot axis. The first pivot axis may be configured to be oriented perpendicular to a second pivot axis. The second pivot axis may be defined by an elevation shaft 10. The first adjustment facility may be adapted to control the position of an elongated platform element 8 about the second pivot axis. A second adjustment facility may be adapted to control the position of the elongated platform element 8 about the first pivot axis.

According to some of the various embodiments, a sight adjustment facility for a firearm may comprise a base 2. The sight adjustment facility may comprise an elongated platform element 8. The elongated platform element 8 may be configured to be movably connected to the base 2. The elongated platform element 8 may comprise a sight mounting facility. The sight adjustment facility may comprise a first adjustment facility. The first adjustment facility may be adapted to move the elongated platform element 8 with respect to the base 2 in windage. The first adjustment facility may comprise a pivot pin 5. At least a portion of the pivot pin 5 may comprise external threads. The first adjustment facility may comprise a multi-axis swivel 7. The multi-axis swivel 7 may comprise a threaded bore. The threaded bore may be configured to receive the pivot pin 5. An at least mostly square or rectangular shaped hole in the base 2 may be configured to restrict the travel of the multi-axis swivel 7. The first adjustment facility may comprise at least one windage adjustment knob 6. Each of the at least one windage adjustment knob 6 may be configured to connect to the pivot pin 5. The elongated platform element 8 may be configured to connect to the pivot pin 5 through employment of the multi-axis swivel 7. The elongated platform element 8 may be configured to be fastened to the multi-axis swivel 7.

According to some of the various embodiments, a sight adjustment facility for a firearm may comprise a base 2. The sight adjustment facility may comprise an elongated platform element 8. The elongated platform element 8 may be configured to be movably connected to the base 2. The elongated platform element 8 may comprise a sight mounting facility. The sight adjustment facility may comprise a first adjustment facility. The first adjustment facility may be adapted to move the elongated platform element 8 with respect to the base 2 in windage. The first adjustment facility may comprise a pivot pin 5. The pivot pin 5 may comprise a swivel extension. The pivot pin 5 and swivel extension may collectively define a multi-axis swivel. An at least mostly square or rectangular shaped hole in the base 2 may be configured to restrict the travel of the swivel extension. At least a portion of the pivot pin 5 may comprise external threads. The first adjustment facility may comprise at least one windage adjustment knob 6. Each of the at least one windage adjustment knob 6 may be configured to threadably connect to the pivot pin 5. A windage adjustment knob 6 may be configured to be connected to a windage bushing. The windage bushing may be employed to secure the windage adjustment knob 6 to the base 2. The base 2 may comprise a relief in the at least mostly square or rectangular shaped hole in the base 2. The relief may be configured to at least partially house the windage bushing. The windage bushing may be configured to rotate freely around the pivot pin 5. A swivel spring may be employed to reduce thread backlash of the pivot pin 5. The elongated platform element 8 may be configured to be fastened to the swivel extension.

A person of ordinary skill in the art will appreciate that components shown in and described with respect to the figures are provided by way of example only. Numerous other configurations are possible. Accordingly, embodiments of the invention should not be construed as being limited to any particular configuration. It will be appreciated that while the disclosure may in certain instances describe a single example embodiment, there may be other configurations, shapes, and orientations of facilities and components without departing from example embodiments of the invention. A person of ordinary skill in the art will recognize the applicability of embodiments of the invention to various firearms, firearm components, rail assemblies, sighting systems, and combinations thereof known in the art. A person of ordinary skill in the art may recognize that embodiments of the invention may comprise forged, milled, and/or printed parts comprising one material or a plurality of materials. A person of ordinary skill in the art will appreciate that components and elements shown in and described with respect to FIGS. 1-7 are provided by way of example only. Numerous other sighting systems, firearms, firearm components, and various component configurations are possible. Accordingly, embodiments of the invention should not be construed as being limited to any particular sighting system, firearm, or firearm component. Additionally, it is to be recognized that, while the invention has been described above in terms of one or more embodiments, it is not limited thereto. Various features, aspects, and/or components of the above described invention may be used individually or jointly. Accordingly, the claims set forth below should be construed in view of the full breadth of the embodiments as disclosed herein. 

The claimed invention is:
 1. A sight adjustment facility for a firearm comprising: a base; an elongated platform element movably connected to the base, the elongated platform element having a sight mounting facility; a first adjustment facility adapted to move the elongated platform element with respect to the base in windage; and a second adjustment facility adapted to move the elongated platform element with respect to the base in elevation.
 2. The site adjustment facility according to claim 1, wherein the base includes a rail clamp facility adapted to connect to a rail of the firearm.
 3. The site adjustment facility according to claim 1, wherein the base is integrated with the firearm.
 4. The site adjustment facility according to claim 1, wherein the base is integrated with an upper receiver.
 5. The site adjustment facility according to claim 1, wherein the first adjustment facility is proximate a first end of the base and the second adjustment facility is proximate a second end of the base.
 6. The site adjustment facility according to claim 1, wherein the base includes a pivot pin defining a first pivot axis, and wherein the elongated platform element is configured to be pivotally connected to the pivot pin to pivot about the first pivot axis.
 7. The site adjustment facility according to claim 6, wherein the second adjustment facility is adapted to control the position of the elongated platform element about the first pivot axis.
 8. The site adjustment facility according to claim 1, wherein the first adjustment facility includes a pivot pin defining a first pivot axis, and wherein the elongated platform element is pivotally connected to the pivot pin to pivot about the first pivot axis.
 9. The site adjustment facility according to claim 6, wherein at least a portion of the pivot pin is externally threaded.
 10. The site adjustment facility according to claim 6, wherein the elongated platform element defines a multi-axis swivel comprising a threaded bore receiving the pivot pin, and wherein the first adjustment facility is adapted to generate positional change of the elongated platform element proximate the multi-axis swivel in response to rotation of the pivot pin.
 11. The site adjustment facility according to claim 9, including at least one windage adjustment knob connected to the pivot pin.
 12. The site adjustment facility according to claim 10, wherein the elongated platform element is formed of a first material and includes a boss formed of a second material and defining the threaded bore.
 13. The site adjustment facility according to claim 10, wherein the pivot pin is threadably engaged between the base and the elongated platform element to provide positional shifting between the base and the elongated platform element in response to rotation of the pivot pin.
 14. The site adjustment facility according to claim 1, wherein the second adjustment facility includes an elevation shaft and an elevation adjustment knob interconnecting the base and the elongated platform element, the elevation shaft defining a second pivot axis, and wherein the elongated platform element is configured to be pivotally connected to the elevation shaft to pivot about the second pivot axis.
 15. The site adjustment facility according to claim 14, wherein at least a portion of the elevation shaft is externally threaded.
 16. The site adjustment facility according to claim 14, wherein the first adjustment facility includes a pivot pin defining a first pivot axis, the first pivot axis oriented perpendicular to the second pivot axis.
 17. The site adjustment facility according to claim 14, wherein the first adjustment facility is adapted to control the position of the elongated platform element about the second pivot axis.
 18. The site adjustment facility according to claim 14, wherein the elevation adjustment knob is threadably engaged to the base to provide positional shifting between the base and the elongated platform element in response to rotation of the elevation adjustment knob.
 19. A sight adjustment facility for a firearm comprising: a base; an elongated platform element movably connected to the base, the elongated platform element having a sight mounting facility; and a first adjustment facility adapted to move the elongated platform element with respect to the base in windage, the first adjustment facility comprising: a pivot pin, at least a portion of the pivot pin comprising external threads; a multi-axis swivel comprising a threaded bore configured to receive the pivot pin; and at least one windage adjustment knob connected to the pivot pin; and wherein the elongated platform element is connected to the pivot pin through employment of the multi-axis swivel, the elongated platform element fastened to the multi-axis swivel.
 20. A sight adjustment facility for a firearm comprising: a base; an elongated platform element movably connected to the base, the elongated platform element having a sight mounting facility; and a first adjustment facility adapted to move the elongated platform element with respect to the base in windage, the first adjustment facility comprising: a pivot pin comprising a swivel extension, a portion of the pivot pin comprising external threads; and at least one windage adjustment knob threadably connected to the pivot pin; and wherein the elongated platform element is fastened to the swivel extension. 